moon knight
Matt7895's alt
Hm, ok, but it doesn't change anything about what happens in the game, does it?
The story will unfold the same way (necessarily so since the conversations happen very late in the game, so unless CDP has developed some potato-fueled time-traveling code...) and even if his motivations were different - his actions were not.
Even act 5 stays the same, I think? Hence, flavor text.
Act V change based on your choices (and a choice you made in Act III).
About the Grand Master, his actions don't change, what you say to Alvin only matters in terms of "his motivation".